Answer:
b. All primates rely more on vision and less on their sense of smell.
Explanation:
Primates make up a group of vertebrate animals and include apes (monkeys), lemurs and humans. All these beings have many similarities to each other, for example, all primates usually have five digits on each hand and foot, primates tend to have large brains in relation to body size and the larger the smarter brain the primate is, primates usually give birth one baby at a time. Not all primates rely more on sight and less on smell; humans tend to rely on sight more than on smell, but most other primates have more developed than humans, so the smell is more important to them.
A) The plant should be shared with the smaller islands.
B) The plant should be fed to the native livestock on the island.
C) The plant should be uprooted from all regions in the island.
D) The plant should be cross-bred with deeper-rooted plants.
2). In the Everglades, a system of canals and levees diverts water to urban areas and the Everglades National Park. This water management system has caused changes in the natural flow of the water during the wet and dry season. Wading birds are especially sensitive to wet and dry seasonal changes. How have water cycle disruptions MOST likely affected wading birds?
A) The reduced salinity results in more eggs being laid.
B) The water quality for feeding has been improved by runoff.
C) The release of water dilutes food sources for their young.
D) The higher water levels allow longer-legged birds to survive and reproduce.
3). In Florida, humans have caused more than 2,000 manatee deaths since 1974. Collisions with boats and boat propellers cause roughly twenty-five percent of all manatee deaths. Another significant cause of the declining population is the disappearance of manatee habitats, resulting primarily from coastal development, water quality problems, and the change in water levels caused by Florida’s flood control systems. A constitutional amendment has been proposed that would protect natural systems and biological diversity. Which would be the MOST likely requirement of a constitutional amendment to protect the manatee population?
A) moving manatees to locations outside of the Everglades
B) restricting manatee hunting in the Everglades to certain times of year
C) raising more manatees in captivity
D) placing a limit on speedboat use in manatee habitats
The BEST method of dealing with the invasive Miconia plant would be to uproot it from all regions of the island (Option C). Water cycle disruptions have most likely affected wading birds by diluting food sources for their young (Option C). The most likely requirement of a constitutional amendment to protect the manatee population would be to place a limit on speedboat use in manatee habitat (Option D).
The invasive Miconia plant is a threat to the native plant species and ecosystem of Hawaii. The plant grows rapidly and has shallow roots, which can cause soil erosion and increase the likelihood of landslides. Sharing the plant with smaller islands or cross-breeding it with deeper-rooted plants may seem like viable solutions, but it is essential to understand that the plant is already invasive and has caused significant harm to the ecosystem. Removing the plant completely is necessary to allow the natural ecosystem to recover and prevent further damage.
Hence, for first question the correct answer is Option C, for second correct answer is Option C, Option D is correct for third question.
Learn more about the invasive species here
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Answer:
Biodervasity.
Explanation:
The term refers to the variety of life on earth.It demonstrates the extent of variation at different levels of species,genetic and ecosystem in a community of organisms.
It not equal in its distribution on earth;but rather varies with the type of ecosystem available and the distribution of biotic and abiotic factors in the ecosystem. For example;
It is highest in the Tropics,due to the species richness and diversity of the region. However, it varies in other ecosystem based on species diversity peculiar to parts of the region .e.g it is highest in the marine ecosystem along the coast of abundant temperature for primary producers.
Answer:
Sample A: 21.3%A, 28.7% G and 28.7% C
Sample B: 27.7% A, 22.3% G and 22.3% C
Explanation:
According to Chargaff's rules of base pairing, the amount of adenine in a DNA molecule equals the amount of thymine, and the amount of G=C.
Sample A
Contains 21.3% T, so it also contains 21.3% A. Therefore A+T= 42.6%
100% - (A+T) = (G+C)
100% - 42.6% = 57.4%
G+C add up to 57.4% of the DNA in sample A. And because G=C, there's 28.7% G and 28.7% C.
Sample B
Contains 27.7% T, so it also contains 27.7% A. Therefore A+T= 55.4%
100% - 55.4% = 44.6%
G+C add up to 44.6% of the DNA in sample B.
And G=C, so there's 22.3% G and 22.3% C.
Answer:
The same gene encodes both proteins by using different combinations of exons in the pre‑mRNA via alternative splicing.
Explanation:
According to the question, two different proteins (one with 56 amino acids and the other with 82 amino acids) are found to be encoded by the same gene. This is possible due to a process called ALTERNATIVE SPLICING.
Alternative splicing is a phenomenon whereby the protein-coding region of a gene called EXON is manipulated in such a way that variety of proteins emanate from a single gene. This manipulation includes the removal or inclusion of EXONS in the gene, so as to give rise to different combinations of mRNA, hence, different proteins will be translated from the different mRNA from the same gene.
In this case, exons were removed from one mRNA to have lesser amino acids (56) in the translated protein while exons were included in the other mRNA to have more amino acids (82).
The same gene can encode two different proteins via mechanisms such as the use of different combinations of exons in the pre-mRNA through alternative splicing, and the gene using multiple 3′ cleavage sites in the pre‑mRNA.
The subject of this question is Alternative Splicing, a processing event in biology that allows a single gene to code for multiple proteins. This process is possible due to the gene's complex structure comprised of multiple exons and introns. Two possible explanations for the same gene encoding two different proteins are through the use of different combinations of exons in the pre‑mRNA via alternative splicing, and the gene using multiple 3′ cleavage sites in the pre‑mRNA. The first mechanism occurs when the gene mix and matches exons during RNA splicing, leading to different mature mRNA molecules which code for different proteins. The second mechanism suggests that the same gene encodes different pre-mRNAs, and the different 3' cleavage sites determine the size of the encoded protein.
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Answer:
sensory neurons
Explanation:
Sensory neurons carry nerve impulses from sense organs and internal organs to the central nervous system.
B) tendons
C) muscle protein
D) bones
E) types of ligaments
The connective tissue holding bone to bone is a;
A) tendon
B) muscle
C) smooth muscle
D) ligament
E) A and D
Answer:
1. C: muscle protein
2. D: ligament
1. Actin and myosin are proteins that form contractile filaments of muscle cells. Troponin regulates muscular contraction and is found in skeletal and cardiac muscle fibers.
2. Tendons connect muscle to bone. Muscles provide movement. Smooth muscles behave involuntarily. Ligaments connect bone to bone.