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olya-2409 [2.1K]
3 years ago
6

Can anyone help me please

Biology
1 answer:
Vanyuwa [196]3 years ago
7 0
What are the vocab words?
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In Kirk's experiment, he keeps a wolf in captivity, offers the wolf four different selections of food each day, and records whic
Lady bird [3.3K]

The disadvantage of wolf captivation is that it restricts the sample size which prevents to make a conclusion on the species.

Explanation:

To study the behavior of the wolves that are kept in captivation during their feeding times, food enrichment programmes are performed. The feeding sessions were proved to be quite useful in studying the stereotype behavior of the wolf.  

However, this study is experimented on small samples and on restricted environment that doesn’t represent the actual environment of a zoo where wolves are allowed to behave as per their nature.

8 0
4 years ago
An element has 2 valence electrons and 3 energy levels. It is located in<br> group
kodGreya [7K]

Answer: 3

Explanation:

All elements in group 3 have 3 levels of energy.

Na (sodium) has 3 valences the inner has 2 electrons, the middle has 8 electrons and the outer has 1 electron.

This will continue across the group 3 adding one more electron to the outer valence until Ar (argon).

Remember the Octet rule of 8..?

4 0
3 years ago
red-green color blindness is an x-linked recessive disorder. if the mother is RGCB and the father has normal vision, what are th
victus00 [196]

Answer:

The correct answer would be -

RGCB daughter - 0%

RGCB sons - 100%

Explanation:

Red-green color blindness is a sex-linked recessive disease that means it will only express in absence of the normal allele that is present on X-chromosomes. As it is known that males have only one X-chromosomes therefore, the chances are more in males to be affected in presence of the recessive gene. In this given case women s RGCB and man has normal vision. The genotype of women would be both recessive alleles XcXc and genotype of man would be XY.

The gametes would be - Xc, Xc and X, Y

then the cross:

       Xc     Xc

X     XXc    XXc

Y    XcY      XcY

so the offspring would be -

Carrier female =  XXc (50% chance in total and 100% in daughters)

RGCB daughters = 0%

RGCB male =  XcY (100% in sons and 50% of total children)

5 0
3 years ago
Enzyme, antibody, hormone, and muscle are roles played by _____.
velikii [3]
Protiens. They also help control the rate of reactions. The attached picture is the polymer I created if it helps any if you need th elements it is made out of.

5 0
4 years ago
Read 2 more answers
Why do many reflexes, such as pulling your hand away from a hot iron, happen so quickly?
sertanlavr [38]
Your nervous system quickly responds to the threat and sends a signal to your brain which causes your muscles/ body to react.
HOPE THIS HELPS!
3 0
4 years ago
Read 2 more answers
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