Question 6 of 33
Which of these situations could produce a population crash?
A. Increase in the availability of food
O B. Volcanic eruption
O C. Low death rate
O D. High birthrate
SUBMIT

An organ that makes and secretes hormones is called a
1] lung
2]gland
3]pancreas
4]thyroid

Why is it we cannot directly observe a genotype, but can sometimes infer it?

At the core of the differences between gender and sex is the chromosomal information transmitted at the moment a child is conceived. An "XY" chromosome generally means A) a heterosexual embryo B) a male embryo C) a hermaphrodite embryo OD) a female embryo​

Hello! could someone please do a 4 sentence quark poem

Earth's crust is a thin layer made of
a rock
b metal
c liquid metal
d water

If you find a fossil in two different locations and it has featured in common with dinosaurs and modern birds, how does this support the evolutionary theory?

a) the two species must not be related
b) looking at the fossils, they show similarities both physically and in their DNA that don't appear to change much over time
c) dinosaurs must have evolved from mammals because their bones are similar in size rather than birds
d) the land must have been together at one point where these two species interbred to share a common ancestor

need help, will mark brainliest! plsss.
Which of the following is *not* a physiological mechanism regulated by timing?

Circadian rhythms in eukaryotes
Hibernation of animals during winter
Photoperiodism to direct the flowering of plants- i think its this one
Viral reproduction in a host cell

Help me with this please

The fan illustrated here plugs into the wall and blows air to make a room cool.




Which of the following best explains how it works?
A: It reduces heat by producing sound energy.

B: It gets chemical energy from gases in the air.

C: It transform electrical energy into the energy of motion.

D: It spins, sending heat and light energy through its wires.

Enumerate ways on how humans produce sound:Ex:clapping your hands
a.__________________________
b.__________________________
c.__________________________
d.__________________________
e.__________________________

​

give an example of something that might stop a cell from checking things during the cell cycle

What would happen if there is an obstruction in the vas deferens?​

meaning of cell or cytology​

What are the goals of binomial nomenclature and systematics?

1. Place the letters in the correct order for DNA replication (a, b, c): ___
a. Daughter strands are formed using complementary base pairing.

b. DNA unwinds

c. The DNA of the daughter strands winds together with its parent strand.
2.Why is DNA replication called “semi-conservative”? ___
3.What enzyme unwinds or unzips the parent strand? ___
4.What enzyme connects the new bases to the old bases in the DNA template? ___
5.___DNA replication results in two DNA molecules,

a. each with two new strands

b. one with two new strands and one with 2 original strands

c. each with two original strands
d. each with one new strand and one original strand

6.___DNA replication is said to be semiconservative because:

a. both RNA and DNA synthesis are involved in the process.

b. part of the telomere is lost during each round of replication.

c. a new double helix contains one old and one new strand.

d. each new strand is complementary, not identical, to its template

How about decreasing the amount of water in blood affect blood pressure

Which technique will researchers studying the inheritance patterns of various disorders most likely use? A. CLADOGRAM, B. DNA FINGERPRINTING, C. GEL ELECTROPHORESIS, D. CHROMOSOMAL ANALYSIS

How can the appearance of white baby rabbits be explained when the mother has white fur, and the father has black fur?

Essay Question: Which two species are more closely related?

Examine the Punnett square below. A cross between the two parents results in 50 offspring. How many of the offspring are most likely to have the dominant trait?

Which of the following contain stem cells that produce most types of blood cells?
Bone Marrow
O Muscle cells
O Bile
O Plasma

Which organ is shaped like a small balloon and is located in the space between your hip bones

Hat percent of electricity in the UK will come from renewable sources by 2010? a. 1% c. 10% b. 5% d. 40%

what is sodium E621 know as MSG is​

Someone please help me !

Describe the role of (A) bacteria fixing nitrogen as they live symbiotically with some plant species, (B) nitrifying bacteria, and (C) denitrifying bacteria in the nitrogen cycle.

Tell me if you think caecilians are amphibians, reptiles, or fish.

PLZ HELP ME!!!!
2. What happens to sedimentary rocks on Earth’s surface?

what does not pass through the stomata of leaves ​

State one way by which Carbon Dioxide decreases in the atmosphere