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Helga [31]
3 years ago
11

Elements that have the same number of protons but a different number of neutrons in the nucleus are called

Biology
2 answers:
Tatiana [17]3 years ago
5 0
D isotopes


They are atoms of an element with the normal number of protons and electrons but different number of protons and electrons
agasfer [191]3 years ago
3 0
The answer is D Because isotopes have the same number of protons but different number of neutrons
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Lee believes that for every 3500-calorie reduction in his diet he will lose one pound. why is lee incorrect?
timama [110]
His body will react as if he is being starved, this causing his basal metabolic rate to drop.
8 0
3 years ago
Write some differences between unisexual and bisexual organisms ​
Reika [66]

Answer:

Unisexual and bisexual organisms are differentiated based on the reproductive systems they posses. Unisexual organisms have separate sexes male or female. Male and female reproductive systems are present in different individuals hence unisexual organisms produce male or female gametes but never both. Bisexual organisms have both male and female reproductive systems within the same individual. Hence, they are capable of producing both types of gametes. Some flowers are unisexual, and they possess only pistils or stamens. Some flowers are bisexual, and they possess both stamens and pistils together. This is the difference between unisexual and bisexual organisms.

7 0
3 years ago
Read 2 more answers
In the following map, the sickle cell allele, HbS is most common in central Africa, the Middle East, India, and small regions of
SCORPION-xisa [38]
<h2>Wide-Spread of Malaria</h2>

Explanation:

  • The sickle cell attribute don't experience the ill effects of the illness.
  • Analysts found that the sickle cell quality is particularly predominant in <em>areas of Africa hard-hit by malaria.</em>
  • <em>Their red platelets, containing some unusual hemoglobin, watch out for sickle when they are contaminated by the jungle fever parasite. </em>
  • Intestinal sickness is lowlands of East Africa thus the sickle cell allele became normal since it gave security against jungle fever.  
  • Sickle cell ailment (SCD) influences a great many individuals all through the world and is especially basic among those whose predecessors originated from sub-Saharan Africa.
7 0
4 years ago
Now follow these directions to classify the insect specimens. Start by putting on your gloves and goggles. Then, using the force
dybincka [34]

The dichotomous key is an important tool to identify the species of living beings, with this tool it was possible to identify the proposed species, however, to understand this question, we need to know that.......

<h3>Dichotomous Key for Insects</h3><h3 />

This dichotomous key is a simplification and is used to find the order of most insects. But as in biology there is always someone or something to deny us, there are insects that defy this order 1.

Start by choosing between one of the two alternatives of option number 1 and go to the indicated number:

 

  1. - Obvious, membranous wings, sometimes covered with scales or fur:  - Wings absent or forewings thick and hiding membranous hindwings: 15
  2. Wings covered with small scales and proboscis-shaped mouthparts: LEPIDOPTERA
    - Wings not covered with scales, usually translucent. Mouthpiece is not a proboscis: 3
  3. - With a pair of wings: DIPTERA
    - With two pairs of wings: 4
  4. - Long, narrow wings, fringed with fur. Size 5 mm or less: THYSANOPTERA
    - Wings not narrow and fringed: 5
  5. - Abdomen with 2 or 3 long filaments. Small hindwings: EPHEMEROPTERA
    - Abdomen with short filaments or none. Full-sized hindwings: 6
  6. - Forewings clearly longer and with a larger area than the hind wings: - Four forewings as long as, or nearly as long as the hind wings and with a similar or smaller area: 10
  7. - Wings hairy, opaque, with long palps antennae as long as the body or longer: TRICHOPTERA
    - Transparent or translucent wings, hairless, palps short or absent, antennae shorter than the body: 8
  8. - Tarsus with 5 segments, usually with a wasp or bee face: HYMENOPTERA
    - Tarsus with 2 or 3 segments, without a bee or wasp face: 9
  9. - Sucking mouthpiece, nozzle starting at the back of the head. Small to large: HOMOPTERA
    - Chewing mouthpiece, without beak, length 7 mm or less: PSOCOPTERA
  10. - Head extended ventrally forming beak-shaped structure: MECOPTERA
    - Head not extended ventrally: 11
  11. - Very short antennae with thick fur and large eyes: ODONATA
    - Antennas not so short. Moderate to small eyes: 12
  12. - Hindwings wider than forewings. Cerci present: PLECOPTERA
    - Hindwings as wide or almost as wide as forewings.  

With this identification key we can taxonomically classify the 10 insects contained in the question, and with that we can discover the species we are studying.

Taxonomy is an important tool to better understand the species of living beings, their species diversity and their role in ecology.

Learn more about species diversity in brainly.com/question/13259455?referrer=searchResults

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2 years ago
Check all statements below that are true.
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