Answer:
Gradually, as generations of elephants continued to selectively use and develop their trunks.
Explanation:
Jean-Baptiste Lamarck was famous French Naturalist. He was a soldier, a biologist and an academic. He gave an early theory of evolution known as the theory of Lamarckism.
It was Lamarck who first believed that elephants earlier had small trunks. But eventual when there was scarcity of food and water, the elephants stretched out its trunk to reached out for food such as trees and also water. And as a result their offspring inherited long and powerful trunk.
In his theory of Lamarckism, he believed that the species passes on its traits to the offspring which they acquired through their use in their lifetime. In this case, the elephants might have used their trunks in such a way that they became long and strong over time and they passed tis trait to their babies.
Please hELP I will mark Brainliest for correct answer and first answer
Answer:
to control which substances enter and leave the cell
Explanation:
the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
5. What helps predict the weather now? A. tea leaves B. sky color C. radios D. computers
Should be D. Bc of satellites being kinda similar to a computer.
I think it's C.
Hope it helps
In the presence of oxygen, _____ molecules of ATP can be formed during cellular respiration.
A. 36 to 38
B. 19 to 24
C. 2 to 4
D. 63 to 68
E. 38 to 42
The humerus, the bone in the upper arm of a human, is directly connected to other bones in the arm by *
Answer: long bone of the upper limb or forelimb of land vertebrates that forms the shoulder joint above, where it articulates with a lateral depression of the shoulder blade (glenoid cavity of scapula), and the elbow joint below, where it articulates with projections of the ulna and the radius.
Explanation:
The picture shown below is from the aftermath of an earthquake. Describe what has happened.
Causes of gonorrhea
Please list 3 causes
Black fur (B) is dominant and white fur (b) is recessive in mice. What are the possible offspring of two black mice (Father = Bb and Mother = Bb) bred together? Think of Mendel's F2 generation.
Answer:
BB, Bb, Bb, bb
Explanation:
by performing a punnet square you will see that these are the possible outcomes. if you need me to go into more detail I will try my best to list the genetic makeup below:
BB: 25%
Bb: 50%
bb: 25%
White: 25%
Black: 75%
The car shown below is trapped in cooled magma. Do you think that the guy in the car was in the car when the magma flowed from the eruption?
Answer:yes the car is stuck so yes he was in the car and he can’t get out
Explanation:
Deoxyribose (sugar). Total number in image?
Answer:
Formula: C5H10O4
Molar mass: 134.13 g/mol
Solubility in water: Very soluble
Melting point: 91 °C (196 °F; 364 K)
Appearance: White solid
Classification: Pentose, Deoxy sugar
Select three of the components that were proposed by Darwin for natural selection to occur. Check All That Apply Populations experience differential reproductive success.Populations experience differential reproductive success. Breeding is done intentionally with the intent to increase the frequency of desired traits.Breeding is done intentionally with the intent to increase the frequency of desired traits. Variation within a population is heritable.Variation within a population is heritable. Populations experience competition for resources.Populations experience competition for resources. The variations in a population make no difference in terms of reproductive success.The variations in a population make no difference in terms of reproductive success.
Answer:
.Variation within a population is heritable. Populations experience competition for resources.
Explanation:
Variation exist among individual, and this makes individual unique. Variation in shape,size,color exist in an organism.
Traits or character can be inherited from parents which means it can be transfer from one person or individual to another.
Each organism posses different traits for survival, some traits are presents as to better help some organism adapt to their environment.
If a son has a sex-linked disorder, he received it from ______.
Answer:
tuff
Explanation:
PLEASE HELP 5TH GRADE SCIENCEEEE AHHHHHHHHH PLEASE HELP ME IM GONNA FAIL IF I DONT GET THIS Alanna spots a bird in her back yard. The bird is sitting on a tree. Explain how the outer coverings of the bird and tree are different and have different functions.
Answer:
The purpose of the outer covering of the bird helps keep it warm and to help it fly, whilst the outer cover of the tree is to protect it from bugs.
Explanation:
Answer: Bird: helps protect it from the environment. Tree: To help reduce water loss.
Explanation:
The outer covering of the bird helps protect it from cold weather, while the outer covering of the tree helps it to reduce water loss.
Please give it a 5 star!
The_____is a large, oval structure that directs all of the cell's activites.
Answer:
The answer is a nucleus.
Explanation:
The nucleus is a large, oval structure that directs all of the cell's activities.
Question 21 (1 point) Sustainable use is often defined as the use of natural resources at a rate that meets the needs of the present human population but which also allows future generations to use the resource to meet their needs. Which of these BEST illustrates the concept of sustainable use? A fishing trawler uses a large net to catch a school of small fish A logging company reseeds and replants in a forested area after cutting down trees for timber Crops are rotated in a farmer's field to maximize grain yields Coal is mined using underground tunnels to avoid the destruction of surface soils by strip mining
Answer:
A logging company reseeds and replants in a forested area after cutting down trees for timber
Explanation:
Answer:
Sustainability is the capacity to endure in a relatively ongoing way across various domains of life.[1] In the 21st century, it refers generally to the capacity for Earth's biosphere and human civilization to co-exist. It is also defined as the process of people maintaining change in a homeostasis-balanced environment, in which the exploitation of resources, the direction of investments, the orientation of technological development, and institutional change are all in harmony and enhance both current and future potential to meet human needs and aspirations.[2][failed verification] For many in the field, sustainability is defined through the following interconnected domains or pillars: environmental, economic and social,[3] which according to Fritjof Capra,[4] is based on the principles of systems thinking. Sub-domains of sustainable development have been considered also: cultural, technological and political.[5][6] According to Our Common Future, sustainable development is defined as development that "meets the needs of the present without compromising the ability of future generations to meet their own needs."[7][8] Sustainable development may be the organizing principle of sustainability, yet others may view the two terms as paradoxical (seeing development as inherently unsustainable).[9]
Explanation:
Why are molecular clocks important in the construction of cladograms? They compare the frequency of reproduction to determine which traits evolved through mutations. They compare the genes inherited by a species to determine descendants. They compare the number of mutations to determine how long ago species separated and evolved.
Answer: They compare the number of mutations to determine how long ago species separated and evolved.
You're welcome!
Answer:
C.They compare the number of mutations to determine how long ago species separated and evolved.
Explanation:
this is correct
Question #1: Which classification level is the most inclusive or least specific?
1. Kingdom
2. Domain
3. Species
4. Genus
———————————————
Question #2: Fungi and Plantae are different from each other because fungi are heterotrophs and plantae are autotrophs.
True or False?
———————————————
Question #3: In binomial nomenclature the first name is the _____ and the second is the _____.
1. genus; species
2. kingdom; domain
3. order; species
———————————————
Question #4: Binomial Nomenclature is a ________________.
1. two term naming system
2. a species found in the Amazon
3. organism cell structure
4. a form of cell
———————————————
I will give brainliest!
The picture shows a giraffe eating leaves.
Which describes the interaction?
abiotic interacting with abiotic
Obiotic interacting with biotic
abiotic interacting with biotic
Obiotic interacting with abiotic
Answer:
biotic interacting with biotic
Explanation:
both the giraff and leaves are living and both are biotic
10 points!!!
In a series circuit with three bulbs,
a.
there are many paths for the current to take.
b.
the remaining two bulbs are not affected if one bulb burns out.
c.
all of the bulbs become dimmer as more bulbs are added.
d.
a switch is never used.
Answer:
C
Explanation:
Because more bulbs are add the dimmer they get
Please can anyone help me in question 2&3
Answer:
2. Reflex action ( transmitting of nerve impulse)
3.Excitory
What are two ways scientists use evidence of past environments preserved in rock?
I think it is A and D (at least those are the ones that made the most sence to me).
What is true for an energy resource with a low net energy?
a. Very little energy goes into making it available.
b. It cannot be used to produce electricity.
c. It needs subsidies to compete in the marketplace.
d. It makes as much high-quality energy available as possible.
e. It is rarely used as a resource in more-developed countries.
Answer:
B
Explanation:
WILL GIVE BRAINLIST!!!!! what are 3 ways that animals and plants can erode rocks in different locations?
Answer:
Hope this Helped :)
Explanation:
1.Biological weathering-Plants and animals release acid forming chemicals that cause weathering and also contribute to the breaking down of rocks and landforms.
2.Plants change Earth’s surface through weathering and erosion.They take minerals from the rock. This is a type of weathering, and it weakens the rock. Eventually the surface of the rock starts to break down and become soil.
3.As larger plants like trees start to grow in a rocky area, their roots
grow into the small cracks in the rock. Slowly, as the tree grows, its roots break the rock apart. This forms more soil and makes it easier for other plants to grow there as well.
4.When too many animals live in one place, they tend to eat and trample all the plants. Without the plants to protect the soil, it is more likely to be eroded by wind and water.
Helped by none other than the ONE & Only #QUEEN herself aka #DRIPPQUEENMO
What structure is found in viruses but not in cells
Answer:
Acellular
Explanation:
Viruses are acellular, meaning they are biological entities that do not have a cellular structure. Therefore, they lack most of the components of cells, such as organelles, ribosomes, and the plasma membrane.
A doctor examines a patient who has high blood pressure and atherosclerosis in the coronary artery. What medical condition connected to blood flow is most likely to affect this patient in the future?
A. The patient may develop headaches and confusion due to cancer in the brain caused by years of low levels of oxygen supplied to the brain.
B. The patient may develop stiff joints and chest pains from the high blood pressure applied to the muscle and joint tissues of the body.
C. The patient may show signs of confusion, weakness, and partial paralysis due to high blood pressure when the plaque dislodges and blocks blood flow to the brain.
D. The patient may suffer a heart attack because of the reduction in blood flow to the muscles due to severe plaque build-up in the coronary artery.
Explain why this is the correct answer and why the other ones are wrong:
How many ATP molecules are made with each glucose in the Krebs?
A. 1
B. 2
C. 4
D. 38
E. 100
Answer:
B. 2
Explanation:
Because for each glucose molecule there are two pyruvic acid molecules entering the system, two ATP molecules are formed.
1. Which of these physical trait(s) did
scientists claim were connected to
certain behavioral trait(s)?
Answer:
It turns out that the body color and wing length genes are linked, which means they are located very close to each other on the same chromosome. In addition, if two genes are linked in this way, then gametes are more likely to contain specific allele combinations.
Explanation:
please mark this answer as brainliest
How do u use a codon chart?
An earthquake causes a population of 10 deer with long tails to panic and move to a
population of 90 deer with short tails. Over time, the allele frequency for long tails
increases from 10% to 30%.
Match this scenario to its mechanism of evolution.
Answer:gene flow
Explanation:
Image Courtesy of 3D Science.com
Based on the image above, which of the following digestive system organs performs both mechanical and chemical digestion?
Answer: Option A
Explanation:
Answer:
A.
Explanation:
Digestion begins in the mounth. Mechanical digestion is the actual chewing of the food, and the chemical digestion begins when the saliva secretes digestive enzymes.
What is the direct source of the energy used to attach a phosphate group to adenosine diphosphate (ADP)?
choices
a food molecule
ATP
sunlight
a protein