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xxMikexx [17]
3 years ago
8

Darcy and Raul are having difficulty conceiving a child. Darcy ovulates every 28 days, and Raul’s sperm count is normal. If we c

ould observe Raul’s sperm about an hour after ejaculation, however, we’d see that they appear to be moving only sluggishly. When Raul’s sperm eventually encounter Darcy’s oocyte, they appear to be incapable of generating an adequate acrosomal reaction. Which process has probably gone wrong?
Biology
1 answer:
lesantik [10]3 years ago
4 0

Answer:

Sperm motility

Explanation:

Sperm motility is the property of the sperms to move properly through the woman's reproductive system during the process of fecundation. The sperms need to move into the female reproductive tract to fertilize the ovum and thus form the egg cell.

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The beaks of the different finches on the Galapagos island differed based on what?
Charra [1.4K]

 The beaks are different  depending on the food available on the island.

4 0
3 years ago
A person whose red blood cells agglutinate with anti-B antibodies BUT NOT anti-A antibodies is type _________.
asambeis [7]

A person whose red blood cells agglutinate with anti-B antibodies BUT NOT anti-A antibodies is type AB.

<h3>What is an agglutinate?</h3>

Agglutination is the process by which specific antibodies to antigenic components on the surface of red blood cells or inert particles (direct agglutination) or to antigenic components adsorbed or chemically attached to red blood cells or inert particles produce clumps of cells or inert particles (passive hemagglutination and passive agglutination, respectively).

When antibodies on one RBC attach to the antigen on another RBC, a process known as agglutination, globular to amorphous, grape-like aggregates of RBCs are formed. RBC agglutination supports immune-mediated hemolytic anemia when it is present (IMHA). The majority of IMHA instances do not exhibit agglutination, but when it does, immunoglobulin M (IgM) is the most frequently implicated because of its pentavalent nature. Agglutination, however, might be brought on by a very thick IgG antibody coating of the RBC membranes. Agglutination is typically regarded as IMHA's diagnostic sign.

Learn more about Agglutination here:

brainly.com/question/13022582

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6 0
2 years ago
QUESTION 2
ASHA 777 [7]

Answer:

Carbon dioxide

Explanation:

Xylem and phloem are the two conducting tissues of a vascular plants. They are referred to as vascular bundles. Xylem and phloem are responsible for conducting certain substances from one part of the plant to another.

The xylem is responsible for conducting WATER AND DISSOLVED MINERALS from the root of the plants to other parts e.g leaves, stem, flowers etc. while the phloem conducts sugar (product of photosynthesis) e.g glucose from the leaves of the plant to other parts including the stem, root etc.

According to this question, xylem or phloem does not conduct or carry gaseous substances like carbon dioxide (CO2).

7 0
3 years ago
How are molecules moved across the cell membrane during active transport?
yuradex [85]

Answer: They move against the concentration gradient

Explanation: This is because, with active transport, the molecules go from a low concentration to a high concentration.

3 0
2 years ago
Proteins are polymers. <br> a. True<br> b. False
xz_007 [3.2K]
False

Proteins are polymers of molecules called amino acids, some contain thousands. Lipids are formed when a glycerol molecule combines with compounds called fatty acids, therefore they are not polymers because they contain one molecule and are not macromolecules. Hope this helps! :)
6 0
3 years ago
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