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Cerrena [4.2K]
3 years ago
9

Some species of rotifers consist solely of females. their method of reproduction is described as _____.

Biology
1 answer:
sergij07 [2.7K]3 years ago
6 0
PARTHENOGENESIS

The females lay unfertilized eggs that develop into females.
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2. Protein A has a binding site for ligand X with a Kd of 10-6M. Protein B has a binding site for ligand X with a Kd of 10-9M. W
allsm [11]

Answer:

Protein B has a higher affinity for ligand C than protein A

Explanation:

Binding affinity is a measure of the strength of the bonds or interactions between a single biomolecule or receptor to its ligand. A ligand is usually a small molecule that binds to a specific receptor.

The receptor is usually a large molecule that contains a specific site for the binding of ligand.

Binding affinity is usually measured by the equilibrium dissociation constant (KD). The equilibrium dissociation constant KD is a ratio of the dissociation and the association of ligand to the receptor. The value of KD is used to evaluate and compare the strengths of bimolecular interactions.  The larger the KD value, the more weakly the target molecule and ligand are attracted to and bind to one another.

The higher the dissociation constant (KD), the weaker the affinity is between the interacting molecules, whereas, the smaller the KD value, the greater the binding affinity of the ligand for its target.

Protein B has a KD value of 10⁻⁹ M while Protein A has a KD of 10⁻⁶ M.

Ration of KD of protein B to protein A = 10⁻⁹ M/10⁻⁶ M = 10⁻³

Therefore, protein B has a KD value which is 1000 times smaller than the KD of protein A.

8 0
3 years ago
The hindbrain of the embryo develops into the pons, the medulla oblongata, part of the spinal cord, and what other structure?
Zepler [3.9K]

The hindbrain of the embryo develops into the pons, the medulla oblongata of the spinal cord and the cerebellum.

<h3>What is the cerebellum? </h3>

The cerebellum is a prominent part of the hindbrain and is located just above the brainstem. The cerebellum controls all the voluntary movements of the body and is also responsible for maintaining balance and posture.

The cerebellum is said to make up for 10% of the brain's volume but has more than 50% of the brain's total neurons.

The cerebellum is made up of two parts; a cerebral cortex, a layer made of folded tissue which contains most of the neurons and cerebral nuclei, an inner part which contains the neurons responsible for communication.

Therefore, the hindbrain develops into the pons, medulla oblongata and cerebellum.

Read more about the cerebellum, here

brainly.com/question/12960127

#SPJ4

8 0
2 years ago
WORTH 15 PTS!!!!
postnew [5]
I believe the answer is C.
7 0
3 years ago
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Using your knowledge of the water cycle, why do you think high sea surface
Wewaii [24]

Answer:

Explanation:

The correlation between sea surface temperature and water vapor is that both are driven by seasonal changes. They both increase in the hemisphere during summer. Seasonal changes in water vapor are, however, more evident across the land, largely due to changes in land surface temperature.

3 0
3 years ago
What part of a flowering plant becomes fruit? <br> A. seed<br> B. ovary<br> C. stem<br> D spore
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Answer:

The fertilized ovule becomes the seed, and the ovary becomes the fruit.

Explanation:

3 0
3 years ago
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