New genetic combinations are a result of
a. Nondisjunction
b. Crossing over
c. accidents
d. all of the above

Answers

Answer 1

Answer:

Explanation: D


Related Questions

Oxygen sag curves can occur in streams when ____. Group of answer choices bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool or cold

Answers

Oxygen sag curves can occur in streams when bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool .

What is biodegradable waste?

The waste which has been recycled and converted into nutrients for plants as well as crops and for other use are known as biodegradable waste. It has been also known as any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms and other living things.

Composting has been possible with the wastes which can decay by itself, like fruit and vegetable peels, leaves, flowers etc. Non biodegradable wastes will not decay by itself.

Therefore, Oxygen sag curves can occur in streams when bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool.

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Which organism are part of every foodchain

Answers

Producers, also known as autotrophs, make their own food. They make up the first level of every food chain. Autotrophs are usually plants or one-celled organisms. Nearly all autotrophs use a process called photosynthesis to create “food” (a nutrient called glucose) from sunlight, carbon dioxide, and water.

Can i ask u a questions

how to get more ques

Brainliest me dear :)

producers are part of every food chain

freshwater fish excrete nitrogenous wastes as _____.

Answers

It released such as poop and children

What can bacteria do with “broken down” materials ?

Answers

Bacteria have the ability to break down dead organisms into smaller particles and create new compounds. We use decomposers to restore the natural nutrient cycle through controlled composting. Bacteria secreting enzymes out of their cells into the soil or dead organism. The enzymes digest the organic material. When they break down organic material, they give off heat. Billions of aerobic bacteria working to decompose the organic matter in a compost pile causes the pile to warm up. As the temperature rises, different organisms thrive.

12. Having tissues that digest food, such as in the jellyfish, is an example of

(a) cell-level organization.

(b) tissue-level organization.

(c) organ-level organization.

(d) organ system-level organization.

Answers

Answer:

cell level organization

Having tissues that digest food, such as in the Jellyfish, is an example of cell-level organization.

What is Jellyfish?

Jellyfish is are aquatic organisms that live in marine and freshwater habitats.

Jellyfish are tentacular species(i.e. they have tentacles that allow them to capture prey) and their body consists of a jelly-like structure that is non-living in nature called mesoglea.

Jellyfish are at the cellular level of organization and their mode of feeding entails some of the following:

Predation (capturing of preys with the use of their tentacles)Filtration of particles through waterNutrient intake via symbiotic association with algae within their cells

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What is released by fat cells to signal that the body has had enough to eat, and also influences BMR

Answers

I believe it is leptin.

PLEASE HELP!

A. What kind of weather is associated with a low-pressure area?

B. What happens to the air of the low pressure areas that leads to this type of weather?

Answers

Answer:

A.) Low-pressure systems are usually associated with clouds and precipitation that minimize temperature changes throughout the day

B.) The slightly inward moving air in low pressure causes air to converge and since it can’t move downward because of the surface, the air is forced upward, leading to condensation and precipitation

Explanation:

Podrían las plantas realizar la fotosíntesis sin ellas respirar ?

Answers

Answer:

No, porque si no pueden respirar morirían, a pesar de que es una planta, son seres vivos y los seres vivos requieren aliento.

Explanation:

Para realizar la fotosíntesis, las plantas necesitan dióxido de carbono / oxígeno.

The ______ (the cell body of a neuron) gives rise to branch-like processes called ______, which are the primary sites for receiving signals from other neurons.Multiple choice question.neurosoma, dendrites

Answers

Answer:

Neurosoma

Dendrites

Explanation:

What are valence electrons?

Answers

Answer: : a single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of the atom.

Explanation:

PLLLSSS HELP ME I WILL GIVE BRAINIEST
in the Fall of the year, leaves appear red, orange, yellow and brown because the chlorphyll decreases in the leaves and allows the --(blank)-- pigments to reflect mostly colors other than green.

possible answers than can go in the blank are primary or accessory

Answers

The appropriate word to fill into the blank would be accessory.

In the Fall of the year, leaves appear red, orange, yellow, and brown because the chlorophyll decreases in the leaves and allows the accessory pigments to reflect mostly colors other than green.

The core pigment in leaves that makes them appear green is chlorophyll. The pigment is primarily responsible for absorbing light energy to drive the photosynthetic process in plants.

Some other pigments, also known as accessory pigments such as carotenoids, anthocyanins, xanthophylls, etc., help out chlorophyll in some ways but have colours that are different from green.

Thus, the appearance of other colours such as orange, yellow, brown, etc., on leaves is due to a decrease in chlorophyll and the reflection of the colours of the accessory pigments.

More on accessory pigments can be found here: https://brainly.com/question/3405710?referrer=searchResults

In the cell, which organelle has the function of using oxygen in the breakdown of glucose, releasing energy and carbon dioxide? Question 19 options: ribosomes Golgi bodies mitochondria endoplasmic reticulum.

Answers

Answer:

mitochondria

Explanation:

Rejection of a newly translated organ caused by ..

Answers

Answer:

D

Explanation:

Rejection of a newly translated organ caused by development of cancerous cells in the organ

Cryptosporidium parvum (C. parvum) is a single-celled, eukaryotic parasite that infects human cells in the digestive system and causes illness.

a. True
b. False

Answers

The statement 'C. parvum is a single-celled, eukaryotic parasite that infects human cells in the digestive system and causes illness' is TRUE. This parasite causes diarrhea.

Cryptosporidium parvum (C. parvum) is a single-cell protozoan that may cause severe self-limited diarrhea in immunocompetent individuals.

Cryptosporidium parvum develops its complete life cycle in the human intestines (also it can be found in animal intestines).

This species (Cryptosporidium parvum) is one of the six (6) known species of Cryptosporidium.

Learn more in:

https://brainly.com/question/13252451

Why don't animal cells need chloroplasts? Question 4 options: Animals do not make their own food. Animal cells make their own chlorophyll. Animal cells collect sunlight another way. Animals use photosynthesis to make their own food.

Answers

Animals do not make their own food.

Animals don’t make their own food

Asexual reproduction __________. View Available Hint(s)for Part A produces offspring genetically identical to the parent requires both meiosis and mitosis leads to a loss of genetic material is limited to plants is limited to single-cell organisms

Answers

Answer:

produces offspring genetically identical to the parent

Explanation:

Which is true about water molecules?

A. Water molecules are nonpolar, meaning their charges balance each other out.

B. Water molecules are polar, meaning they have a net partial negative charge.

C. Water molecules are polar, meaning they have partial negative and positive
charges.

D. Water molecules are nonpolar, meaning they do not interact with each other.

Answers

Answer: C

Explanation: Water is a polar molecule because the electrons of the hydrogen atoms get "pulled" towards the electrons of the oxygen atom. Which is both positive and negative on opposite ends.

It could be B as well but, I believe it's C

List in order what an athlete does when she bl00d d0pes.

1. She chills the bl00d and stores it.

2. She puts the bl00d back into her body just before a competition.

3. She removes the bl00d from her body.​

Answers

i know nothing on this topic, however the most logical answer would be 3,1,2
pretty easy if you think about it3, 2, 1

Which type of animal have thick skin and long Eyelashes?​

Answers

Answer:

Camel

Explanation:

white blood cells that circulate in the bloodstream and are an important part of the body’s immune system are called ________.

Answers

Answer:

Lymphocytes

Explanation:

A lymphocyte is a type of white blood cell that is part of the immune system. There are two main types of lymphocytes: B cells and T cells. The B cells produce antibodies that are used to attack invading bacteria, viruses, and toxins. The T cells destroy the body's own cells that have themselves been taken over by viruses or become cancerous.

Explain how chemical properties and chemical changes are different?

Answers

Explanation:

 A chemical property describes the ability of a substance to undergo a specific chemical change. A chemical reaction is a process that occurs when one or more substances are changed into one or more new substances.

Which paired structures of the male reproductive system lie at the base of the bladder and connect to the vas deferens via a duct

Answers

Boo I’m sorry bro bro I’m sorry bro I’m so sorry bro I’m sorry I’m just gonna be safe I’m sorry I’m just laying down wI the buss late in class at the hotel I had ko and the staff here and I had called and my mom was here and I’m not really hungry and I’m just gonna wait to eat my wet and I’m just gonna take a nap I’m sorry I don’t yyyuyyyyyyuuuuyytttttreewwwwwe to sleep bye mommy mommy bye bye bro bro bye bro love you bro love love you bro I don’t know how much you bro bro I don’t got to go get out at work all the day I’m sorry bro bro bye bye love you bye love mommy mommy bye bye bro bro bye bye love you bye love mommy mommy bye bye bro bro bye bye love you bye love mommy mommy bye bye bro bro bye bye love mommy mommy bye bye bro bro bye bro bro bye bye love you bye love bye bro

Explain why contractile vacuoles would be of little value to one-celled organisms living in the ocean (salt water)

Answers

In salt water, the solute concentration outside the cell is more than inside the cell so the water flows out of the cell down the concentration gradient. Therefore, contractile vacuoles are not required for expelling water.

The organisms living in an aquatic environment have to undergo osmoregulation and survive in a hypotonic environment. The organisms such as paramecium, protists, and unicellular algae have contractile vacuoles.

The functions of the contractile vacuoles include:

1. Contractile vacuoles help in the osmoregulation, such that the movement of solute particles inside and outside of the cells.

2. The contractile vacuoles are also required to remove excess water from the organisms.

3. The vacuoles contract to discharge the fluid for the survival of organisms like paramecium and algae.

Thus, the contractile vacuoles contract to allow the organisms to survive in a hypotonic environment.

To know more about contractile vacuoles, refer to the following link:

https://brainly.com/question/13839668

what is prophase, meta phase and anaphase labled under?
1.Mitosis
2.DNA replication
3.Meiosis
4:Photosynthesis​

Answers

Answer:

Technically Mitosis and Meiosis

Explanation:

Mitosis is the spliting of Body Cells. Mitosis goes through 4 phases that are easy to remember as PMAT. Mitosis starts with Interphase then moves to Prophase, Metaphase, Anaphase, and Telephase. These steps also occur in Meiosis. However Meiosis goes through these step twice. If you need further explaination of mitosis and meiosis I recomend the amoeba sisters.

Hope this helps!!

Which of the following is NOT a cause for siblings to look differently?


sexual reproduction


independent assortment


crossing over


mutations

Answers

Answer:

mutations is the answer

What parts of our eyes help us see light?

Answers

Answer:

it's called the renting it controls the pupil

PLEASE HELP ME IM TIMED!

Answers

Answer:

#3 Proteins

Explanation:

"There are four classes of macromolecules (polysaccharides or carbohydrates, triglycerides or lipids, polypeptides or proteins, and nucleic acids such as DNA & RNA). Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON)."

The correct answer is carbohydrates

the right lung has ________ lobes, and the left lung has ________ lobes.

Answers

Answer:

3,2

Explanation:

if the woman and a man with normal clotting function have one biological daughter and one biological son, which children are predicted to have hemphilia A

Answers

The children Thats predicted to have hemophilia is the biological son

a
. Protons have a charge and an electron has a charge and they are to each other.
a) positive, negative, attracted
c) positive, neutral, attracted
b) positive, neutral, repellant
d) negative, positive, attracted

Answers

Answer:

Your answer is (A), positive, negative, attracted.

I hope this helped at all.

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