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ElenaW [278]
3 years ago
5

What is the posterior and anterior opening of the digestive tract called?

Biology
1 answer:
Alla [95]3 years ago
6 0
I think its the anus 
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Write a title for each step of primary<br><br> succession
vladimir2022 [97]

Answer:

<em>The labels <u>I-VII</u> represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.</em>

4 0
2 years ago
Suppose a drug is developed that blocks K+ leakage channels. The drug prevents ions from passing through those channels. If this
Sav [38]

Answer: 1. The resting membrane potential would become less negative (more positive).

Explanation:

Resting membrane potential is a voltage carried by a resting (non-signaling) neuron, or called as resting potential, across its membrane.  The resting potential is determined by ion concentration gradients across the membrane, and the permeability of the membrane to each ion form.  

In a resting brain, there are gradients of concentration across the Na+ and K+ membranes. Forces shift their gradients down through channels, resulting in a separation of charges that provides the potential for rest. The membrane is much more permeable to K+ than to Na+, so the resting potential is similar to K+'s potential for equilibrium.

Hence, the correct option is 1. The resting membrane potential would become less negative (more positive).

7 0
3 years ago
Match the following. 1 . codominance Both members of an allelic pair contribute to phenotype producing a mixture of phenotypic t
STALIN [3.7K]

Answer:

1. codominance Both members of an allelic pair contribute to phenotype producing a mixture of phenotypic traits

2 . Rh factor: An inherited protein found on the surface of the red blood cell membrane

3 . hemophilia: A hereditary condition for bleeding due to the inability to clot properly

4 . holandric gene: A gene located on the Y chromosome in XY species

Explanation:

Codominance occur when a pure breeding White flower crosses with a pure breeding Red flower and gives PINK offspring

Rhesus Factor is an antigen that appears on the surface of red blood cells. it is an important factor to consider during blood transfusion.

Hemophilia is a sex-linked condition where the sufferer is unable to have a blood clot.

Holandric gene can ONLY be passed from males (carriers of XY chromosomes) to their sons

6 0
3 years ago
Read 2 more answers
What are Food materials that are not digested or absorbed
Free_Kalibri [48]
Gum doesn’t get a pair Ed
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3 years ago
How are the products of protein hydrolysis by an aminopeptidase used in metabolism?
NNADVOKAT [17]
Aminopeptidases are enzymes that cleave polypeptides, or proteins,at the N terminus, or the amino end.  Protein hydrolysis is breaking down proteins into amino acids by adding water. Aminopeptidases are enzymes that cause protein hydrolysis. Once the protein is broken down into amino acids, the amino acids can be metabolized. Usually the body uses carbohydrates or lipids for metabolism, but in rare cases, such as starvation, proteins can be broken down and used for energy. 
Protein metabolism starts with the enzyme,pepsin, in the stomach and the smaller polypeptides travel to the small intestine where trypsin and chymotrypsin break them down into amino acids. Most of the newly available amino acids are combined to form new proteins. If the body has no need for proteins, they are converted to glucose or ketones and are decomposed. Breaking down amino acids results in nitrogen, which is converted to urine. In starvation, protein is broken down to amino acids and amino acids are broken down to oxaloacetate  acid, pyruvate  and acetyl coA and these intermediates are used in the Kreb cycle to produce ATP. 
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3 years ago
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