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astra-53 [7]
3 years ago
8

What developmenta period is marked by sizeable losses in cognitive potential, chronic stress and fertility?

Biology
1 answer:
ludmilkaskok [199]3 years ago
5 0
I'm assuming you meant and frailness not fertility, in which case it is the oldest old period
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Where in the cell does the krebs cycle part of cellular respiration occur ?
neonofarm [45]

Answer:

<u>In the mitochondrial matrix</u>

<u></u>

Explanation:

The mitochondria is an organelle within the cytoplasm of the cell.  It consists of an outer membrane, inner membrane, and matrix containing a gel-like substance. During aerobic respiration in mitochondria, cells break down sugars in the form of glucose into CO_{2} (carbon dioxide) and  H_{2} O (water) to obtain energy in the form of ATP or adenosine triphosphate.

aerobic respiration:

C6H12O6+ 6 O2        →      6 CO2 + 6 H2O + ≅38 ATP

(glucose)   (oxygen)         (carbon dioxide) + (water)

The Kreb's cycle involves several enzymatic reactions, where pyruvate derivatives obtained from glycolysis, are reduced and oxidized to harvest energy as ATP.

8 0
2 years ago
Swimmers itch is an initial symptom of which of the following?A. tularemiaB. schistosomiasisC. Chagas diseaseD. Lyme diseaseE. m
bogdanovich [222]

Answer: B. schistosomiasis

Explanation:

Swimmer's itch is also called as cercarial dermatitis. It appears as a skin rash. It is typically an allergic reaction which is caused by a parasite.

Swimmer's itch is the symptom of Schistosomiasis. It is a disease which is also called as snail fever. It is caused by the parasitic flatworm called as schistosomes. This parasite infects the urinary tract and intestine in humans. Other symptoms include the diarrhea, abdominal pain, bloody stool and blood in the urine.

6 0
3 years ago
“!PLEASE HELP!” (8 POINTS)
pogonyaev
This climate is warm. 
The animals in the tundra are strong to live in such an environment. 

I don't know what the rest of that stuff is sorry. 
3 0
3 years ago
▪️Chapter - The fundamental unit of life
Rashid [163]

Answer:

The difference between Prokaryotic cell and Eukaryotic cell are;

\begin{array}{lll}&\underline {\text {Prokaryotic}}& \underline {\text {Eukaryotic}}\\ \\ \text {Nuclear \ membrane \ and \ nucleus} & \text {No \ true \ nucleus \ or}    & \text {Has \ a \ true \ nucleus} \\& \text {nuclear \  membrane} & \text {nucleoli \ and \ nuclear \ membrane}\\\\ \text {Membrane \ bound \ cell \ organelle} & \text {None &Present} \\\\ \text {Chromosome \ number \ and \ shape} & \text {One} & \text {Several, more \ than \ one} \end{array}

Explanation:

Prokaryotic cells

The plasma membranes surround prokaryotic cells, however, within their cytoplasm, there are no organelles bound to the membrane and there is no nucleus in the prokaryotic cell which differentiates it from the eukaryotic cells

Eukaryotic cells

Eukaryotic cells also have plasma membranes, ribosomes and cytoplasm. Eukaryotic cells also have membrane-bound nucleus, membrane bound organelles, such as chloroplast, mitochondria, endoplasmic reticulum, and Golgi apparatus which together differentiates it from a prokaryotic cell

4 0
3 years ago
Cnidarians and Ctenophores are alike in the following way: a) they are scavengers and parasites. b) they are both diploblastic.
alexandr1967 [171]

Answer:

Options B.

They are both diploblastic.

Explanation:

Cnidarians are group of aquatic animals that live both in fresh water and Marine water. They are distinguished by the possession of specialized cells called cnidocytes for capturing prey. They are radially symmetrical and have two body layers ectoderm and endoderm separated by jelly layer called mesoglea.

Examples are Hydra, corals, sea anemone and jelly fish.

Ctenophores are phylum of Marine animals that are found in every where. They are characterized by vast of cilia which is use for swimming. They are bilaterally symmetrical , they have mouth and don't have anus. They don't have respiratory, excretory and circulatory system. They are diploblastic i.e they have two body layers but some are triploblastic.

They have nemacyctes for capturing prey.

Examples are nuda, tentaculata e.t.c.

7 0
3 years ago
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